Texas Instruments TI-89 Titanium User Manual page 565

Item Lets you:
Variable Type a variable name for the program or function.
If you specify a variable that already exists, an error message
will be displayed when you press
¸
or
redisplayed.
4. Press ¸ (after typing in an input box such as
twice) to display an empty "template."
This is the template for a
program. Functions have a
similar template.
You can now use the Program Editor as described in the remaining sections of this
module.
A program (or function) is saved automatically as you type. You do not need to
Note:
save it manually before leaving the Program Editor, starting a new program, or
opening a previous one.
Resuming the Current Program
You can leave the Program Editor and go to another application at any time. To return to
the program or function that was displayed when you left the Program Editor, launch
Program Editor again and select
Programming
to acknowledge the error, the NEW dialog box is
1:Current
¸
. When you press
Variable
.
N
, you must press ¸
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